Where are you browsing from today?

USA flag

US
EU / UK

Ethical Clothing
USA flag

Sustainable Cotton Underwear

Shop for cotton underwear from the top ethical and sustainable clothing brands in the United States

132 Products | Page 1 of 3 | On Sale Selected

Page 1 of 3 | On Sale Selected

Sort By:

Commissions may be paid to Ethical Clothing when purchasing items with our partner brands.
Alta Legging
Ten Tree
Alta Legging
  • 36.00
  • 40.00
Organic Cotton Legging
Ten Tree
Organic Cotton Legging
  • 18.00
  • 30.00
All Time Scallop Trunks
Outerknown
All Time Scallop Trunks
  • 49.00
  • 98.00
Pre-Loved Organic Pima Cotton Wrap Front Bodysuit ♻️
Hello Jackalo
Pre-Loved Organic Pima Cotton Wrap Front Bodysuit ♻️
  • 12.00
  • 38.00
Tasty Scallop Trunks - Outerworn
Outerknown
Tasty Scallop Trunks - Outerworn
  • 74.00
  • 128.00
Organic Cotton High Rise Legging
Ten Tree
Organic Cotton High Rise Legging
  • 18.00
  • 30.00
Scoop Neck Longsleeve Bodysuit
Ten Tree
Scoop Neck Longsleeve Bodysuit
  • 34.80
  • 58.00
APEX Evolution Trunk by Kelly Slater
Outerknown
APEX Evolution Trunk by Kelly Slater
  • 84.00
  • 168.00
Curve Convertible Bra 3-Pack
Brook There
Curve Convertible Bra 3-Pack
  • 170.00
  • 228.00
Organic Cotton Mid-Rise Shortie in Petal
Knickey
Organic Cotton Mid-Rise Shortie in Petal
  • 10.00
  • 20.00
Organic Cotton High-Rise Brief in Lunar
Knickey
Organic Cotton High-Rise Brief in Lunar
  • 15.00
  • 20.00
Organic Cotton Tank Bralette
Knickey
Organic Cotton Tank Bralette
  • 15.00
  • 48.00
Organic Cotton Low-Rise Thong in Petal
Knickey
Organic Cotton Low-Rise Thong in Petal
  • 10.00
  • 20.00
Organic Cotton Tank Bralette in Wheat
Knickey
Organic Cotton Tank Bralette in Wheat
  • 15.00
  • 48.00
Organic Cotton Keyhole Soft Bra in Aurora
Knickey
Organic Cotton Keyhole Soft Bra in Aurora
  • 31.00
  • 62.00
The Molly Thong Bundle | Natural
Christy Dawn
The Molly Thong Bundle | Natural
  • 128.00
  • 144.00
Organic Cotton Mid-Rise Shortie in Garnet
Knickey
Organic Cotton Mid-Rise Shortie in Garnet
  • 10.00
  • 20.00
Organic Cotton Mid-Rise Hipster Mystery 3-Pack
Knickey
Organic Cotton Mid-Rise Hipster Mystery 3-Pack
  • 20.00
  • 60.00
Hipster - Cassiopée Lace - Black
Ode
Hipster - Cassiopée Lace - Black
  • 17.40
  • 31.30
Organic Cotton Triangle Soft Bra in Garnet
Knickey
Organic Cotton Triangle Soft Bra in Garnet
  • 31.00
  • 62.00
Organic Cotton Men's Boxer
Knickey
Organic Cotton Men's Boxer
  • 15.00
  • 30.00
Organic Cotton Mid-Rise Brief in Petal
Knickey
Organic Cotton Mid-Rise Brief in Petal
  • 10.00
  • 20.00
Organic Cotton Scoop Bralette in Cloud Nine
Knickey
Organic Cotton Scoop Bralette in Cloud Nine
  • 24.00
  • 48.00
Organic Cotton Men's Boxer in Carbon
Knickey
Organic Cotton Men's Boxer in Carbon
  • 15.00
  • 30.00
Men's Work Week - 5 Organic Cotton Breather Boxers
Kent
Men's Work Week - 5 Organic Cotton Breather Boxers
  • 153.00
  • 170.00
Organic Cotton Mid-Rise Retro Brief in Petal
Knickey
Organic Cotton Mid-Rise Retro Brief in Petal
  • 10.00
  • 20.00
Triangle Bra & Thong Set
Kent
Triangle Bra & Thong Set
  • 86.00
  • 96.00
Organic Cotton Tank Bralette in Carbon
Knickey
Organic Cotton Tank Bralette in Carbon
  • 15.00
  • 48.00
The Scoop Soft Bra: 2-Pack
Kent
The Scoop Soft Bra: 2-Pack
  • 104.00
  • 116.00
Organic Cotton Scoop Bralette
Knickey
Organic Cotton Scoop Bralette
  • 24.00
  • 48.00
Thong Trio ~ 3 Organic Cotton Underwear
Kent
Thong Trio ~ 3 Organic Cotton Underwear
  • 80.00
  • 84.00
Organic Cotton High-Rise Brief in Cloud Nine
Knickey
Organic Cotton High-Rise Brief in Cloud Nine
  • 15.00
  • 20.00
Organic Cotton Long Sleeve Bodysuit - Geometric Moon
Tonle
Organic Cotton Long Sleeve Bodysuit - Geometric Moon
  • 14.00
  • 24.00
Men's Work Week - 5 Organic Cotton Breather Briefs
Kent
Men's Work Week - 5 Organic Cotton Breather Briefs
  • 127.50
  • 170.00
SET Simplicité & Hipster - Soft Rose
Ode
SET Simplicité & Hipster - Soft Rose
  • 68.90
  • 107.20
Simplicité Bralette - Dahlia Champagne
Ode
Simplicité Bralette - Dahlia Champagne
  • 48.00
  • 68.90
Triangle Bra 3-Pack
Brook There
Triangle Bra 3-Pack
  • 138.00
  • 192.00
Organic Cotton High-Rise Thong in Lunar
Knickey
Organic Cotton High-Rise Thong in Lunar
  • 10.00
  • 20.00
The Trio ~ 3 Organic Cotton Underwear
Kent
The Trio ~ 3 Organic Cotton Underwear
  • 80.00
  • 84.00
The Mel Panty Bundle | Natural
Christy Dawn
The Mel Panty Bundle | Natural
  • 128.00
  • 144.00
Hipster - Black and Ivory
Ode
Hipster - Black and Ivory
  • 27.10
  • 44.60
Black Pixy Bra
Brook There
Black Pixy Bra
  • 58.00
  • 78.00
Chocolate Jersey Slip
Brook There
Chocolate Jersey Slip
  • 54.00
  • 68.00
Men's Trio - 3 Organic Cotton Breather Boxers
Kent
Men's Trio - 3 Organic Cotton Breather Boxers
  • 97.00
  • 102.00
Girls' Organic Cotton Marigold Leggings
Crann
Girls' Organic Cotton Marigold Leggings
  • 21.00
  • 28.00
Simplicité Bralette - Night Blue
Ode
Simplicité Bralette - Night Blue
  • 48.00
  • 68.90
Organic Cotton Scoop Bralette in Cacao
Knickey
Organic Cotton Scoop Bralette in Cacao
  • 24.00
  • 48.00
Organic Cotton Mid-Rise Retro Brief in Garnet
Knickey
Organic Cotton Mid-Rise Retro Brief in Garnet
  • 10.00
  • 20.00

Filter By

Bras (49)
Leggings (9)
Lingerie (8)
Thongs (14)
Kids (6)
Men (23)
Unisex (1)
Women (102)
Underwear (132)
All
Cotton (27)
Organic-Cotton (105)
All
Brook There (41)
Christy Dawn (26)
Crann (3)
Fair Indigo (4)
Happy Earth (7)
Harvest And Mill (4)
Hello Jackalo (1)
Kent (35)
Knickey (160)
Mara Hoffman (1)
Mate (34)
Miakoda (3)
Namuk (2)
Ode (59)
Outerknown (4)
Ten Tree (4)
The Good Tee (1)
Tonle (6)
Vitamin A (1)
Wama Underwear (11)
Yala (2)
Sales only
Ethical Clothing Logo Be the first to know when North America's top ethical brands are on sale, sign up to our newsletter here